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No matter what you’re looking for, be it rough or polished, certified or uncertified, we have it all. You can count on us to satisfy your diamond needs. Browse through our wide selection of diamonds.


We strive for perfection. Every diamond is envisioned, cut, polished, and graded to fit standards and proportions set by our experts. Using state-of-the-art technology, our highly-trained master craftsmen polish over 500 diamonds in-house in our manufacturing facility on a daily basis to create pure magic.


We value the 4Cs – diamond cut and clarity, color and carat weight. Each one of these plays an important role in determining the quality and, therefore, the price of the diamond. We specialize in the following cuts, colors, clarities and carat weights.

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The first of the 4Cs of diamonds, cut refers to the arrangements of facets in a diamond influencing its radiance and beauty. The more skilled and precise the diamond cutter is, the better the light gets reflected from each facet in the diamond. Our diamond artisans are trained to follow precise mathematical proportions relating to the height, width and depth of the crown (top), girdle (widest part), and pavilion (bottom). 


When a diamond is accurately cut to the right proportions, light reflects from one facet onto another and then disperses through the top of the stone. The result? An otherworldly burst of fire and brilliance. The flashes of color that you see in the diamond are called its fire and the visible sparkle is the diamond’s brilliance. No wonder a diamond is a woman’s best friend.

At Dianco, we specialize in the following cuts:

round shaped diamonds


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princess square shaped diamonds.webp


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Ovel shaped diamonds.webp




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emerald rectangle shaped diamonds.webp



The second of the 4Cs, the color of the diamond influences the amount of light that can pass through it. The more colorless the diamond, the rarer and (no guesses here) the more expensive it is. Depending on the degree of colorlessness found in a diamond, a letter is assigned to it based on a color scale established by the Gemological Institute of America (GIA). The color scale begins with the letter D (completely colorless) and ends with Z (yellow, brown, or grey).

At Dianco, we manufacture the following colors:


D is the highest color grade a diamond can receive which depicts that the stone is completely colorless/white.

E, F

E and F are the next highest color grades found in the color scale. While an untrained eye may find the diamond colorless, a trained gemologist will be able to identify faint traces of color in the same stone.

G, H, I

G, H, and I may typically look colorless to the naked eye. However, when closely examined with the correct tools, a few streaks of color may be seen.

J, K, L, M

J, K, L, and M are the lowest graded colors we work with at Dianco. These stones have highly identifiable, visible streaks of color. 


The third of the 4Cs is diamond Clarity. Did you know that it is almost impossible to have a diamond without any impurities? Often invisible to the naked eye, these natural impurities are categorized as inclusions, if they are internal, blemishes, if they are external. Diamonds with inclusions are typically formed when elements or minerals get trapped inside the rough diamond when it is in the earth's crust. These appear as feathers, clouds, or crystals within the diamond. On the other hand, blemishes are formed when the diamond is scratched or chipped externally.


The fewer the impurities, the better the clarity and the more valuable the diamond. The GIA established a grading system to measure the type and size of these imperfections.

At Dianco, we have diamonds that fall under the following clarities:


FL stands for flawless which is when the stone has no visible inclusions or blemishes when seen under 10x magnification. IF, on the other hand, stands for Internally Flawless denoting that the diamond has no visible inclusions, but may have a few external blemishes.


VVS stands for Very, Very Slight Inclusions. When a diamond is graded VVS1 or VVS2, it has one to a few inclusions which are difficult to view under 10x magnification. These inclusions are so tiny that even a trained gemologist can find it difficult to spot them.

VS1, VS2

Next in the diamond clarity chart is VS which stands for Very Small Inclusions. While these inclusions are easier to spot by a trained eye, they cannot be seen without a microscope.

SI1, SI2

The last tier in the clarity grading system are SI diamonds which often seem clean to the naked eye. SI stands for Small Inclusions. Even to an untrained eye, these inclusions can be easily identified under 10x magnification.

I1, I2, I3, I4, I5

I stands for Inclusions denoting that the diamond has visible inclusions, which can be seen easily even with the naked eye.


The last of the 4Cs of diamonds is Carat. To determine the size of a diamond, you need to weigh it and carat weight is the traditionally-used unit used to measure a diamond. One carat is approximately equivalent to 0.2 grams. 


Diamonds smaller than a carat are referred to in points where one point is equal to 1/100th of a carat. So, a 75-point diamond is equal to 0.75 carats. Diamonds as small as 0.001 carats also exist and that’s where the star melee diamonds size chart comes into the picture. The difference between star and melee diamonds is that star diamonds (often called diamond dust) are exceedingly small and range from 0.008-0.021 carats while melee diamonds are small diamonds weighing less than 1/5th of a carat. 


What’s interesting is that though two diamonds may weigh the same, they may appear different in size depending on their depth and proportions. They may also be priced differently depending on their cut, color and clarity. At Dianco, we manufacture and stock polished diamonds that range from 0.05 carats to 3 carats.

round shaped diamond

0.05 Carat

round shaped diamond

0.25 Carat

round shaped diamond

0.50 Carat

round shaped diamond

0.75 Carat

round shaped diamond

0.90 Carat

round shaped diamond

1.00 Carat

round shaped diamond

1.50 Carat

round shaped diamond

2.00 Carat

round shaped diamond

2.50 Carat

round shaped diamond

3.00 Carat


We are here to satisfy your every diamond need. 

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